Thanks for the reply.

After deleting every thing on the pc and re-installing, it seemed working fine.
However, I tried to play with shaders and such on. After an hour or so, it crashed back again.
So i deleted them.

Removed overlays and such, and checked "Disable Fullscreen Optimizations" (ffxiv[_dx11].exe -> Properties -> Compatibility)

Managed to idle in Limsa for 3 hours, and did some SoS-Ex. Hasn't crashed for the last 4.5 hours.

It seems fine at the moment, however I don't want to jump to conclusion and assume the problem solved.
But so far, "Disable Fullscreen Optimizations" seems to do the trick.

Code:

-=-=-=-=-=-=- FFXIV Information -=-=-=-=-=-=-

MyDocument	C:\Users\<user>\Documents
ProxyEnable 0
ProxyServer unspecified
ProxyOverride unspecified


-=-=-=-=-=-=- System Information -=-=-=-=-=-=-

SYSTEM_OS	Windows 10 Pro 64-bit (6.2, Build 9200) (19041.vb_release.191206-1406)
SYSTEM_CPU	Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz (12 CPUs), ~3.7GHz
SYSTEM_CORE_NUM	SYSTEM_CORE_LOGIC 12  SYSTEM_CORE_PHYSICS 6
SYSTEM_BIOS	0430
SYSTEM_LANGUAGE	English (Regional Setting: English)
SYSTEM_MEMORY	32697.918MB
SYSTEM_VIRTUAL_MEMORY	134217727.875MB
SYSTEM_PAGE_FILE	37817.918MB
SYSTEM_STORAGE	C:\    SYSTEM_HARDDISK_DRIVE    SYSTEM_TOTALDISC_SPACE 476.330GB    SYSTEM_FREEDISC_SPACE 428.775GB
SYSTEM_STORAGE	D:\    SYSTEM_HARDDISK_DRIVE    SYSTEM_TOTALDISC_SPACE 931.512GB    SYSTEM_FREEDISC_SPACE 870.350GB
SYSTEM_STORAGE	E:\    SYSTEM_HARDDISK_DRIVE    SYSTEM_TOTALDISC_SPACE 3725.989GB    SYSTEM_FREEDISC_SPACE 1720.748GB
SYSTEM_STORAGE	Z:\    SYSTEM_HARDDISK_DRIVE    SYSTEM_TOTALDISC_SPACE 3726.006GB    SYSTEM_FREEDISC_SPACE 2782.348GB
SYSTEM_DIRECTX_VERSION	DirectX 12
SYSTEM_GRAPHICS	NVIDIA GeForce GTX 1080 Ti
SYSTEM_GRAPHICS_DEVICE	\\.\DISPLAY1
SYSTEM_GRAPHICS_CHIP	GeForce GTX 1080 Ti
SYSTEM_GRAPHICS_MAKER	NVIDIA
SYSTEM_GRAPHICS_VRAM	11127.000 MB
SYSTEM_GRAPHICS_SHARED_VRAM	16348.959 MB
SYSTEM_GRAPHICS_DAC	Integrated RAMDAC
SYSTEM_GRAPHICS_DISPLAY_MODE	1920 x 1080 (32 bit) (144Hz)
SYSTEM_GRAPHICS_DRIVER	C:\Windows\System32\DriverStore\FileRepository\nvmd.inf_amd64_82063bd87f0dc443\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvmd.inf_amd64_82063bd87f0dc443\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvmd.inf_amd64_82063bd87f0dc443\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvmd.inf_amd64_82063bd87f0dc443\nvldumdx.dll
SYSTEM_GRAPHICS_DRIVER_VERSION	26.21.0014.4166
SYSTEM_GRAPHICS_DRIVER_DATE	12/6/2019 03:00:00
SYSTEM_GRAPHICS_DRIVER_LANGUAGE	English
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER	3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE	SYSTEM_SUPPORT
SYSTEM_GRAPHICS	NVIDIA GeForce GTX 1080 Ti
SYSTEM_GRAPHICS_DEVICE	\\.\DISPLAY2
SYSTEM_GRAPHICS_CHIP	GeForce GTX 1080 Ti
SYSTEM_GRAPHICS_MAKER	NVIDIA
SYSTEM_GRAPHICS_VRAM	11127.000 MB
SYSTEM_GRAPHICS_SHARED_VRAM	16348.959 MB
SYSTEM_GRAPHICS_DAC	Integrated RAMDAC
SYSTEM_GRAPHICS_DISPLAY_MODE	1920 x 1080 (32 bit) (60Hz)
SYSTEM_GRAPHICS_DRIVER	C:\Windows\System32\DriverStore\FileRepository\nvmd.inf_amd64_82063bd87f0dc443\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvmd.inf_amd64_82063bd87f0dc443\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvmd.inf_amd64_82063bd87f0dc443\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvmd.inf_amd64_82063bd87f0dc443\nvldumdx.dll
SYSTEM_GRAPHICS_DRIVER_VERSION	26.21.0014.4166
SYSTEM_GRAPHICS_DRIVER_DATE	12/6/2019 03:00:00
SYSTEM_GRAPHICS_DRIVER_LANGUAGE	English
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER	3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE	SYSTEM_SUPPORT
SYSTEM_GRAPHICS	NVIDIA GeForce GTX 1080 Ti
SYSTEM_GRAPHICS_DEVICE	\\.\DISPLAY3
SYSTEM_GRAPHICS_CHIP	GeForce GTX 1080 Ti
SYSTEM_GRAPHICS_MAKER	NVIDIA
SYSTEM_GRAPHICS_VRAM	11127.000 MB
SYSTEM_GRAPHICS_SHARED_VRAM	16348.959 MB
SYSTEM_GRAPHICS_DAC	Integrated RAMDAC
SYSTEM_GRAPHICS_DISPLAY_MODE	2560 x 1080 (32 bit) (60Hz)
SYSTEM_GRAPHICS_DRIVER	C:\Windows\System32\DriverStore\FileRepository\nvmd.inf_amd64_82063bd87f0dc443\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvmd.inf_amd64_82063bd87f0dc443\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvmd.inf_amd64_82063bd87f0dc443\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvmd.inf_amd64_82063bd87f0dc443\nvldumdx.dll
SYSTEM_GRAPHICS_DRIVER_VERSION	26.21.0014.4166
SYSTEM_GRAPHICS_DRIVER_DATE	12/6/2019 03:00:00
SYSTEM_GRAPHICS_DRIVER_LANGUAGE	English
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER	3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE	SYSTEM_SUPPORT
SYSTEM_SOUND	C24FG7x (NVIDIA High Definition Audio)
SYSTEM_SOUND_DEVICE_ID	{C40637D7-5FF0-4E09-8FDF-A99669B0C5F8}
SYSTEM_SOUND_DEVICE_NAME	nvhda64v.sys
SYSTEM_SOUND_DRIVER_VERSION	1.3.38.21
SYSTEM_SOUND_DRIVER_LANGUAGE	English
SYSTEM_SOUND_DRIVER_DATE	12/6/2019 03:00:00
SYSTEM_SOUND	DELL ST2210 (NVIDIA High Definition Audio)
SYSTEM_SOUND_DEVICE_ID	{09E7BFCD-7617-4FF1-85C1-AFF8D3BBD35D}
SYSTEM_SOUND_DEVICE_NAME	nvhda64v.sys
SYSTEM_SOUND_DRIVER_VERSION	1.3.38.21
SYSTEM_SOUND_DRIVER_LANGUAGE	English
SYSTEM_SOUND_DRIVER_DATE	12/6/2019 03:00:00
SYSTEM_SOUND	Digital Audio (S/PDIF) (High Definition Audio Device)
SYSTEM_SOUND_DEVICE_ID	{EAE3C65D-5AEE-439D-901A-8F4FE825C6E0}
SYSTEM_SOUND_DEVICE_NAME	HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION	10.0.19041.264
SYSTEM_SOUND_DRIVER_LANGUAGE	English
SYSTEM_SOUND_DRIVER_DATE	5/9/2020 03:00:00
SYSTEM_SOUND	LG ULTRAWIDE (NVIDIA High Definition Audio)
SYSTEM_SOUND_DEVICE_ID	{66AB5E6B-48FA-48E8-9F26-33AFDD3027C7}
SYSTEM_SOUND_DEVICE_NAME	nvhda64v.sys
SYSTEM_SOUND_DRIVER_VERSION	1.3.38.21
SYSTEM_SOUND_DRIVER_LANGUAGE	English
SYSTEM_SOUND_DRIVER_DATE	12/6/2019 03:00:00
SYSTEM_SOUND	Speakers (High Definition Audio Device)
SYSTEM_SOUND_DEVICE_ID	{884CBF00-CCD2-4BE3-8419-237CA22A345F}
SYSTEM_SOUND_DEVICE_NAME	HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION	10.0.19041.264
SYSTEM_SOUND_DRIVER_LANGUAGE	English
SYSTEM_SOUND_DRIVER_DATE	5/9/2020 03:00:00
SYSTEM_INPUT	{6F1D2B60-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME	Mouse
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 3  SYSTEM_GAMEPAD_BUTTON 8  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{6F1D2B61-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME	Keyboard
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 128  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1D95240-FFB7-11EA-8004444553540000}
SYSTEM_INPUT_NAME	Joystick (Razer Tartarus V2)
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 6  SYSTEM_GAMEPAD_BUTTON 24  SYSTEM_GAMEPAD_FOV 1
SYSTEM_INPUT	{D1D8DD10-FFB7-11EA-8001444553540000}
SYSTEM_INPUT_NAME	Gaming Mouse G402
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 652  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1D95240-FFB7-11EA-8002444553540000}
SYSTEM_INPUT_NAME	Gaming Mouse G402
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 3  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1D95240-FFB7-11EA-8003444553540000}
SYSTEM_INPUT_NAME	Gaming Mouse G402
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 0  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1D97950-FFB7-11EA-8005444553540000}
SYSTEM_INPUT_NAME	Gaming Mouse G402
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 0  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1D9C770-FFB7-11EA-8006444553540000}
SYSTEM_INPUT_NAME	Razer Tartarus V2
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 573  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1D9C770-FFB7-11EA-8007444553540000}
SYSTEM_INPUT_NAME	Razer Tartarus V2
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 3  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1DA1590-FFB7-11EA-8009444553540000}
SYSTEM_INPUT_NAME	Razer Tartarus V2
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 1  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1D9C770-FFB7-11EA-8008444553540000}
SYSTEM_INPUT_NAME	Razer Ornata Chroma
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 573  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1E64A90-FFB7-11EA-8012444553540000}
SYSTEM_INPUT_NAME	Razer Tartarus V2
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 1  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1DA1590-FFB7-11EA-800A444553540000}
SYSTEM_INPUT_NAME	Razer Ornata Chroma
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 3  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1DA3CA0-FFB7-11EA-800B444553540000}
SYSTEM_INPUT_NAME	Razer Ornata Chroma
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 1  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1DA63B0-FFB7-11EA-800C444553540000}
SYSTEM_INPUT_NAME	Razer Ornata Chroma
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 1  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1DA63B0-FFB7-11EA-800D444553540000}
SYSTEM_INPUT_NAME	Blue Snowball 
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 1  SYSTEM_GAMEPAD_BUTTON 0  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{8AE9DFB0-FFC3-11EA-8002444553540000}
SYSTEM_INPUT_NAME	Corsair composite virtual input device
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 1024  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1DAB1D0-FFB7-11EA-800E444553540000}
SYSTEM_INPUT_NAME	Lighting Node PRO
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 0  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1E6E6D0-FFB7-11EA-8013444553540000}
SYSTEM_INPUT_NAME	HID-compliant consumer control device
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 1024  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{D1E5FC70-FFB7-11EA-8011444553540000}
SYSTEM_INPUT_NAME	HID-compliant consumer control device
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 1024  SYSTEM_GAMEPAD_FOV 0


-=-=-=-=-=-=- Application Information -=-=-=-=-=-=-

FINAL FANTASY XIV
# chat - Discord
Telegram
Microsoft Store
Microsoft Store
Microsoft Text Input Application
Microsoft Edge
Microsoft Edge
Microsoft Edge


-=-=-=-=-=-=- Install Information -=-=-=-=-=-=-

Deluge 1.3.15
Mozilla Thunderbird 78.3.0 (x86 en-US)
Razer Synapse
Steam
CORSAIR iCUE Software
Microsoft Visual C++ 2015-2019 Redistributable (x64) - 14.24.28127
Microsoft Visual C++ 2019 X86 Minimum Runtime - 14.24.28127
ExpressVPN
Microsoft Visual C++ 2015-2019 Redistributable (x86) - 14.24.28127
ExpressVPN
Microsoft Visual C++ 2019 X86 Additional Runtime - 14.24.28127
7-Zip 19.00 (x64)
BlueStacks (HyperV) Beta
Firefox Developer Edition 82.0 (x64 en-US)
Mozilla Firefox 81.0 (x64 en-US)
Mozilla Maintenance Service
FINAL FANTASY XIV Online
Among Us
Logitech G HUB
Microsoft Visual C++ 2008 Redistributable - x64 9.0.30729.6161
Microsoft Visual C++ 2019 X64 Minimum Runtime - 14.24.28127
Microsoft Visual C++ 2019 X64 Additional Runtime - 14.24.28127
NVIDIA Graphics Driver 441.66
NVIDIA Install Application


-=-=-=-=-=-=- Proccess Information -=-=-=-=-=-=-

C:\Program Files (x86)\Mozilla Thunderbird\thunderbird.exe	00004928
C:\Program Files (x86)\Razer\Razer Services\Razer Central\CefSharp.BrowserSubprocess.exe	000037B0
C:\Program Files (x86)\Razer\Razer Services\Razer Central\Razer Central.exe	000032E0
C:\Program Files (x86)\Razer\Synapse3\Service\..\UserProcess\Razer Synapse Service Process.exe	000011C0
C:\Program Files (x86)\Razer\Synapse3\WPFUI\Framework\Razer Synapse 3 Host\Razer Synapse 3.exe	0000314C
C:\Program Files\BlueStacks_bgp64_hyperv\HD-Agent.exe	0000441C
C:\Program Files\LGHUB\lghub.exe	00003068
C:\Program Files\LGHUB\lghub_agent.exe	00002FA8
C:\Program Files\Mozilla Firefox\firefox.exe	0000192C
C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Microsoft.Photos.exe	000040BC
C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\WinStore.App.exe	00003CC4
C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\GameBar.exe	00003930
C:\Program Files\WindowsApps\Microsoft.YourPhone_1.20091.84.0_x64__8wekyb3d8bbwe\YourPhone.exe	000042D0
C:\Program Files\WindowsApps\Microsoft.YourPhone_1.20091.84.0_x64__8wekyb3d8bbwe\YourPhoneServer\YourPhoneServer.exe	00000F84
C:\Users\<user>\AppData\Local\1Password\app\7\1Password.exe	000049FC
C:\Users\<user>\AppData\Local\Discord\app-0.0.308\Discord.exe	00002FE8
C:\Users\<user>\AppData\Local\slack\app-4.9.0\slack.exe	00002728
C:\Windows\Explorer.EXE	00001FEC
C:\Windows\System32\CompPkgSrv.exe	00003A50
C:\Windows\System32\GameBarPresenceWriter.exe	00002364
C:\Windows\System32\MicrosoftEdgeCP.exe	000027E8
C:\Windows\System32\RuntimeBroker.exe	00004448
C:\Windows\System32\SecurityHealthSystray.exe	00002E94
C:\Windows\System32\smartscreen.exe	000005BC
C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe	00003B78
C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe	00002344
C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe	00002224
C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe	000027AC
C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe	00000618
C:\Windows\system32\ApplicationFrameHost.exe	00003AC4
C:\Windows\system32\DllHost.exe	00002BEC
C:\Windows\system32\MicrosoftEdgeSH.exe	00003B3C
C:\Windows\system32\SettingSyncHost.exe	000026C8
C:\Windows\system32\browser_broker.exe	00002700
C:\Windows\system32\conhost.exe	000024EC
C:\Windows\system32\sihost.exe	00001E38
C:\Windows\system32\svchost.exe	00003558
C:\Windows\system32\taskhostw.exe	0000205C
C:\Windows\system32\wbem\unsecapp.exe	00003220
D:\Corsair\CORSAIR iCUE Software\iCUE.exe	000026C0
D:\Steam\steamapps\common\FINAL FANTASY XIV Online\boot\ffxivsysinfo64.exe	0000310C
D:\Steam\steamapps\common\FINAL FANTASY XIV Online\game\ffxiv_dx11.exe	00000E08
D:\Telegram\Telegram.exe	000019A4